gsegyfile_test.c

segy 显示程序！希望能给正在做这部分朋友提供一部分资料

/* 
 * gsegyfile_test - Test of SEG-Y file access and traces sort
 *
 * Copyright (C) 2005-2006 Vladimir Bashkardin
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more av.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Author:  Vladimir Bashkardin  <[e-mail]>
 */

#include <gtk/gtk.h>
#include <gsegyfile/gsegyfile.h>

static gboolean close (GtkWidget *widget, GdkEvent* event, gpointer data) {
    gtk_main_quit ();
    return FALSE;
}

static gboolean test_file_scan_fraction_handler (GSEGYFile *segy_file, gfloat fraction,
                                                 GSEGYFileError *file_error, gpointer data) {
    return TRUE;
}

static void button_clicked (GtkWidget *widget, gpointer data) {
    GSEGYEndianess *endianess;
    GSEGYFormatWizard *format_wizard;
    GSEGYFile *test_file;
    GSEGYSeismicAccessor *seis_access;
    GSEGYFileError *error;

    endianess = g_segy_endianess_new (TRUE, TRUE);
    format_wizard = g_segy_format_wizard_new (endianess);
    test_file = g_segy_file_new ("data/test.sgy");

    error = g_segy_file_get_error (test_file);

    if (error && error->id != G_SEGY_FILE_NO_ERROR) {
#ifdef DEBUG
        if (error->gerror)
            g_printf ("File open error: id = %d, message = %s\n", error->id, error->gerror->message);
        else
            g_printf ("File open error: id = %d\n", error->id);
#endif
        g_object_unref (test_file);
        g_object_unref (format_wizard);
        g_object_unref (endianess);

        return;
    }

    g_signal_connect (G_OBJECT (test_file), "scan_fraction",
                      (GCallback)test_file_scan_fraction_handler, NULL);

    g_segy_file_set_format (test_file, format_wizard, NULL);

    if (error && error->id != G_SEGY_FILE_NO_ERROR) {
#ifdef DEBUG
        if (error->gerror)
            g_printf ("File format check error: id = %d, message = %s\n", error->id, error->gerror->message);
        else
            g_printf ("File format check error: id = %d\n", error->id);
#endif
        g_object_unref (test_file);
        g_object_unref (format_wizard);
        g_object_unref (endianess);

        return;
    }

    seis_access = g_segy_file_get_seismic_accessor (test_file);
    g_segy_seismic_accessor_sort (seis_access, 5, 7, TRUE, TRUE);

    g_object_unref (seis_access);
    g_object_unref (test_file);
    g_object_unref (format_wizard);
    g_object_unref (endianess);
}

int main (int argc, char *argv[]) {
    GtkWidget *window, *button;

    gtk_init (&argc, &argv);

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title (GTK_WINDOW (window), "SEG-Y file access sample");
    gtk_signal_connect (GTK_OBJECT (window), "delete_event", GTK_SIGNAL_FUNC (close), NULL);

    button = gtk_button_new_with_label ("Test");
    gtk_container_add (GTK_CONTAINER (window), button);
    gtk_signal_connect (GTK_OBJECT (button), "clicked", GTK_SIGNAL_FUNC (button_clicked), NULL);

    gtk_widget_show (button);

    gtk_widget_show (window);

    gtk_main ();

    return (0);
}